The best mass gainer apps on iPhone average 4.5★ across 122+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
This app provides personalized weekly meal plans and training regimens to help users gain weight and build muscle. It supports various dietary preferences and includes features for tracking progress and managing grocery lists.
Easily track your weight, monitor progress towards your goals, and calculate your BMI. This simple app helps you visualize your journey with graphs and reminders, offering Apple Watch and Health integration for seamless data management.